Allen l



A. L. ANDBRSON Gar-Axle Box.

Patented .lune 15,1880.

",PETERS. PHOTO-LIMOGRAPHER. WASHINGTON. D. C.

ECMTED STATES PATENT Ormea.

ALLEN ANDERSON, OF CINCINNATI, OHIO, ASSIGNOR OF ONE-HALF OF HIS RIGHTTO JAMES H. FOOTE, OF SAME PLACE.

CAR-AXLE `Box.-

SPECIFICATION forming part of Letters Patent No. 228,720, dated June 15,1880.

Application filed December 30, 1879.

To all whom it may concern Be it known that I, ALLEN L. ANDERSON, ofCincinnati, in Hamilton county, Ohio, have invented certain Improvementsin Car-Axle Boxes, of which thefollowing is aspecification.

This invention relates to the use of frictionrollers in car-axle boxes;and it consists in certain devices and combinations of devices, moreparticularly set forth in the claimsat the end hereof.

The drawings represent a car-axle box containing my improvements.

Figure 1 is a vertical lateral section, showing the inner ends ofthefriction-rollers in elevation. Fig. 2 is a section through the axis ofthe car-axle. the main friction-roller, however, beingin elevation; andFigs. 3, 4, 5, and G are views showing other details.

A is the car-axle. B is the main frictionroller. It is so located abovethe axle A that the direct weight of the car is sustained by it. Thismain roller has a solid bearin g in the half-boxes b, which may, itdesired, be made adjustable in any of the well-known ways.

C C are oil-cups formed in the main casing of the box, from which oil issupplied to the journals of roller B. c o are sliding covers to theoilcups C, held in place by pins c c', so that they may be slid to oneside to fill the cups, but will not slide olf. D D are the auxiliaryrollers, having their'bearings in the halfboxes d d, which are inclined,as shown, so as to be in the line of strain.

The rollers B and D D are made of larger diameter than the journal ofaxle A, so that they may revolve at a lower speed, thus having lesstendency to heat, and they are of such width as to form a positivebearing throughout nearly the whole length of the axle-journal.

Upon one end of each auxiliary roller is a flange, E, and up againstthis flange is a ring, e, which forms the end bearing of axle A, andtakes the thrust, and may be renewed when necessary. The end of axle Ais provided with a ring, a, to form the bearingsurface and prevent wearof the axle, so that the wear is all on the rings a and e, which arerenewable. The ring a is slightly smaller in outside diameter than theaxle-journal, it being in- 5o tended for end bearing only.

These rings may be of any suitable material. I contemplate making a ofgun-metal, and e e of steel; but other materials may be used.

F is a box-formed carriage fitting within the main casing. Its sidessupport the brasses in which the auxiliary rollers D have theirbea-rings, so that these rollers move with the carriage. This carriagecontains oil to lubricate rollers D, and the level of the oil is liin-6o ited by an overiow-pipe, f, so that it will not rise and overflow theedges of the carriage. The pipe f may be placed at such a point that theoil will rise to the bearings of rollers D, as shown in Fig. l. and theouter casing is a rubber cushion, G, upon the outer side of carriage F,and one or more steel springs, H, below the same, for the purpose oftaking up shocks, jars, 8vo., and ob; viating the evil effects oftwisting strains. 7o

G and H may, if desired, both be of rubber or both of steel, or of othersuitable material. The springs H are compressed to some extent when thebox is put together on the axle, so that any wear of the bearings willbetaken up 7 5 and a solid bearing preserved between the rollers and theaxle. I also compress cushion G to some extent, to keep a close solid'nearing on the end of the axle and to prevent loosening of nuts Q. 8o

The main casing is composed ot'two partsau upper part, M, which containsthe bearings, &c., of the main roller B, aud a lower or hanging part, K.The outer side, K, of the latter is removable to give access to theinte- 8 5 rior of the box. fm n are flanges for use in the usual mannerin keeping the box in place in the truck-frame. At the joint O of thetwo parts of the casing I have a lead packing consisting of two or morelayers, so as to form a 9o tight joint, and also so that when the wearof the brasses, which is taken up by springs H, has become about equalto one of the layers of this packing, I can take out one of theselayers, and by screwing the two parts of the 5 casing up together againrestore the springs H to their original tension. When in this manner allor all but one ofthe layers of pack- Between the carriage F ing havebeen removed I put in new brasses and fresh layers of packing. At thisjoint O, on the lower part of the casin g, I form a iiange, l?, and Ihave the nuts S of such size that they fill the space in which they arelocated, and one side of them will be up against this flan ge, whichthereby operates as a nut-lock, so that any loosening at this joint mustoccur by the bolts working up, and not by the nuts working down; and inputting the casing together the bolts are screwed down into the nutsinstead ofthe nuts onto the bolts, as is usual. Instead ot' separatenuts for each bolt, a bar tapped at proper points may be used.

i is a packing-ring around the axle, to keep out dust, Snc. Instead ofthe ring, as shown, an ordinary stuffing-box or other method of packingmay be employed.

7' is a packing for the same purpose at the opening for theoverflow-pipe j', and I employ a packing for the same purpose at thejoint between K and L.

It will thus he seen that the casing K L M is entirely dust-tight, bywhich I secure perfeet immunity from cutting or heating of the journalsfrom this cause.

Having thus described a form of my invention, I claiml. In a car-axlebox, the combination of a single main friction-roller, B, revolving insolid bearings above the axle, so as to take the direct weight of thecar, two auxiliary bearing-rollers, D D, having their centers below thecenter of the axle, to provide a bearing against vertical and lateralstrains, and anges E E on the ends of the latter, to provide a bearingagainst thrust, all substantially as described.

2. In a car-axle box, in combination with the main and auxiliaryfriction-rollers, the springs H, for taking up wear and keeping a solidbearing between the rollers and the axle, substantially as described.

3. In a car-axle box, the combination, with the main and auxiliarybearing-rollers, of the springs H, to take up wear in the bearings, andthe packing O, in two or more layers, whereby, when the springs havebecome relaxed by such wear, they may be restored to their originaltension by the removal ot' a layer of such packing, substantially asdescribed.

4. In a car-axle box, in combination with the bearing-rollers D D andtheir iianges E E, the rings e e, to form renewable bearing-surfaces,substantially as described.

5. In a car-axle box, in combination with the bearing-rollersD D andtheir flanges E E, the removable ring a on the end of the axle, for thepurpose of forming a renewable bearing-surface, substantially asdescribed.

6. In a car-axle box, the combination of the auxiliary bearing-rollers'D D and their carriage F, substantially as described.

7. In a car-axle box, in combination with the bearing-rollers D D andtheir carriage F, the cushions or springs G and H, to take up shocks andtwisting-strains, 85o., substantially as described.

A. L. ANDERSON. Attest:

WM. S. BATES, J. H. BATES.

